She ended up quitting and getting into the sciences instead, because she couldn't stand the class warfare techniques that the school taught. I think this is telling of a part of French society that isn't well-known outside of France.
This is an elite school, which teaches the brightest French youths (in terms of grades and competitive intellectual ability), and also the children of politicians, business leaders and powerful families.
The curriculum has your usual suspects of business administration topics, but also focuses on forming contacts in the elites and politics, plus explicit instruction in techniques for manipulating and dominating others. Examples being rhetoric, lying with a straight face, defending and justifying an indefensible or immoral case, or spreading rumors and damaging others' reputation.
France, in spite of all the beheadings, never really lost its aristocracy. There is a level of first-world corruption that's insane by central European standards. The politicial class consists exclusively of people who have gone to elite schools like the one I described, and never held a job, catering mostly to the requirements of big businesses.
As an external observer, it seems insane to me that the French are unable to vote in politicians that are not cronies to this system. But the news story is really no surprise, based on my third-hand knowledge of how French executives are trained.
Would love to hear some viewpoints from French or French-affiliated hackers on this.